98 MOLLUSCA FROM THE CRAG. 



3. EuLiMA GLABELLA. S. TFood. Tab. XIX, fig. 2. 



EuLiMA GLABELLA. S. Wood. Catalogue 1842. 



Eit. Testa subtilata, turritd ,nitidissimd, politd ; apiceobtuso; anfracfibus 6 — 1 , planu- 

 latis, contiffiiis ; mturis distinctis ; aperturd ovatd, superne acuminata; lahro arciiato. 



Shell small, turreted, strong, naked, smooth, and glossy, with an obtuse apex ; 

 volutions 6 — 7, flattish ; suture distinct ; aperture ovate, acuminated at the upper part ; 

 outer lip rather obtuse and arcuated. 



Axis, fg of an inch. 



Locality. Cor. Crag, Sutton. 



This is not a very rare species. It differs from E. subidata in having a more obtuse 

 apex, a less elongated form, and in the curvature of the outer lip; the suture is better 

 defined, and the whorls slightly convex. It may be known from the young and 

 smaller specimens of E. potita by a more subulate form, and by the base of the 

 body whorl not being angulated. It appears to be intermediate between the two. At 

 the upper part of the volution, just below the suture, the shell is of a different tint, as 

 if in its recent state it had been ornamented with a coloured band similar to that of 

 E. subulata, only in a different position. It may possibly be the intermedia of Cantraine 

 (Malac. Mediter. Mem. de I'Acad. Roy. de Brux., t. 13), but that shell is described as 

 having a spire " effilee." Our figure represents the apex as too much acuminated. 



Alvania,* Leach, MS. 1818. 

 Alvania. Risso, 1826. 

 Aceis. Loven, 1846. 



Gen. Char. Shell elongate, subulate, and turriculate, with an elevated spire, and 

 a papilliform and reversed apex ; volutions numerous, convex, covered with elevated 

 striae ; aperture ovate ; outer lip thickened (?), with a slightly reflected inner lip, and a 

 small umbihcus. 



A species of this genus in the British Museum had long passed under the MS. 

 name oi Alvania, given to it by the late Dr. Leach (1818), and intended by him to 

 have been erected into a genus, which name was afterwards adopted by M. Risso, 1826, 

 with the following characters : " Coq. conique, suture presque profonde; ouverture ovale, 

 aigue k droite ; peretreme mince, parfait ; opercule cornee." Although not very well 

 defined, these characters are sufficient for the Crag shell it is intended here to include, 

 and as the name originally given by Dr. Leach was attached to a specimen of Alvania 

 glabella, the type of his genus, it is but right it should be retained. 



* Etym. (?) 



